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Latest Form 4 (Oct 2, 2026): Johannes Jacob Pieter Kastelein (Chief Scientific Officer): Exercise/Conversion of 50,246 shares.
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| Filed | Insider | Transaction | Shares | Value |
|---|---|---|---|---|
| Oct 2, 2026 | Johannes Jacob Pieter Kastelein, Chief Scientific Officer | Exercise/Conversion | 50,246 | n/a |
| Sep 15, 2026 | Michael H. Davidson, Chief Executive Officer | Purchase | 10,000 | $226.5K |
| Sep 9, 2026 | John W. Smither | Sale | 1,600 | $40.5K |
| Sep 3, 2026 | Robert William Gunning, Vice President, Controller | Grant/Award | 3,200 | n/a |
| Aug 25, 2026 | Johannes Jacob Pieter Kastelein, Chief Scientific Officer | Exercise/Conversion | 125,000 | n/a |
| Jul 22, 2026 | Louise Frederika Kooij, Chief Accounting Officer | Exercise/Conversion | 25,000 | $297.5K |
| Jun 24, 2026 | Louise Frederika Kooij, Chief Accounting Officer | Exercise/Conversion | 25,000 | $272.5K |
| May 27, 2026 | Louise Frederika Kooij, Chief Accounting Officer | Exercise/Conversion | 60,000 | $600.0K |
| Mar 12, 2026 | Louis G. Lange | Sale | 44,173 | $1.34M |
| Mar 11, 2026 | Louis G. Lange | Sale | 28,186 | $829.0K |